Bell pepper production under saline stress and fertigation with different K+/Ca2+ ratios in a protected environment



Título del documento: Bell pepper production under saline stress and fertigation with different K+/Ca2+ ratios in a protected environment
Revista: Acta scientiarum. Agronomy
Base de datos: PERIÓDICA
Número de sistema: 000460433
ISSN: 1679-9275
Autores: 1
2
1
2
3
2
Instituciones: 1Universidade Federal da Paraiba, Departamento de Fitotecnia e Ciencias Ambientais, Areia, Paraiba. Brasil
2Universidade Federal Rural do Semi-Arido, Mossoro, Rio Grande do Norte. Brasil
3Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Ciencias Agrarias e Veterinarias, Jaboticabal, Sao Paulo. Brasil
Año:
Volumen: 42
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en inglés Bell peppers are sensitive to salinity; therefore, it is necessary to find alternatives to reduce saline stress. An experiment was conducted in a greenhouse at Federal Rural University of the Semi-Arid Region, in Mossoró, Rio Grande do Norte State, Brazil, to evaluate the effects of salinity and K+/Ca2+ ratios on bell pepper production. The experimental design consisted of randomized blocks in a 5 x 4 factorial scheme with four replicates, corresponding to five K+/Ca2+ ratios (F1 = 3.3/1, F2 = 2.8/1, F3 = 2.2/1, F4 = 1.8/1, and F5 = 1.5/1) and four salinity levels in the nutrient solution using NaCl (1.75, 3.25, 4.75, and 6.25 dS m-1). The following parameters were evaluated: the number of fruits (total, marketable and unmarketable), the mean weight of fruits (marketable and unmarketable), fruit production (total, marketable and percentage of marketable fruits) and a salinity tolerance index. Generally, nutrient solution enrichment with K+ or Ca2+ did not cause significant increments in bell pepper yield. The fertigation treatments F2, F3, and F5 led to a higher bell pepper tolerance to salinity, allowing waters with higher salt concentrations to be used without causing a reduction in the yield
Disciplinas: Agrociencias
Palabras clave: Fertilización,
Hortalizas,
Pimiento morrón,
Capsicum annuum,
Salinidad,
Potasio,
Calcio,
Fertirriego
Keyword: Vegetables,
Fertilization,
Bell pepper,
Capsicum annuum,
Salinity,
Potassium,
Calcium,
Fertirrigation
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